WMI是一个强大的技术：只需要简单的指定一个WMI类名就能返回它类的所有实例：

复制代码 代码如下:

PS> Get-WmiObject -Class Win32_BIOS

SMBIOSBIOSVersion : 76CN27WW

Manufacturer : LENOVO

Name : 76CN27WW

SerialNumber : 1006250300406

Version : LENOVO - 1

你如何知道它有哪些类呢？这里有一款查找工具：

复制代码 代码如下:

function Find-WMIClass

{

param

(

[Parameter(Mandatory=$true)]

$SearchTerm = 'Resolution'

)

Get-WmiObject -Class * -List |

Where-Object { $_.Properties.Count -ge 3 } |

Where-Object { $_.Name -notlike 'Win32_Perf*' } |

Where-Object {

$ListOfNames = $_.Properties | Select-Object -ExpandProperty Name

($ListOfNames -like "*$SearchTerm*") -ne $null

} |

Sort-Object -Property Name

}

设置搜索条件后，代码将搜索出包含指定属性名的类（还可以通过通配符扩大搜索范围）

下面将找出所有包含“resolution”结尾的WMI类：

复制代码 代码如下:

PS> Find-WMIClass -SearchTerm *resolution

NameSpace: ROOTcimv2

Name Methods Properties

---- ------- ----------

CIM_CacheMemory {SetPowerState, R... {Access, AdditionalErr...

CIM_CurrentSensor {SetPowerState, R... {Accuracy, Availabilit...

CIM_FlatPanel {SetPowerState, R... {Availability, Caption...

CIM_Memory {SetPowerState, R... {Access, AdditionalErr...

CIM_MonitorResolution {} {Caption, Description,...

CIM_NonVolatileStorage {SetPowerState, R... {Access, AdditionalErr...

CIM_NumericSensor {SetPowerState, R... {Accuracy, Availabilit...

CIM_PCVideoController {SetPowerState, R... {AcceleratorCapabiliti...

CIM_PointingDevice {SetPowerState, R... {Availability, Caption...

CIM_Printer {SetPowerState, R... {Availability, Availab...

CIM_Tachometer {SetPowerState, R... {Accuracy, Availabilit...

CIM_TemperatureSensor {SetPowerState, R... {Accuracy, Availabilit...

CIM_VideoController {SetPowerState, R... {AcceleratorCapabiliti...

CIM_VideoControllerResolution {} {Caption, Description,...

CIM_VolatileStorage {SetPowerState, R... {Access, AdditionalErr...

CIM_VoltageSensor {SetPowerState, R... {Accuracy, Availabilit...

Win32_CacheMemory {SetPowerState, R... {Access, AdditionalErr...

Win32_CurrentProbe {SetPowerState, R... {Accuracy, Availabilit...

Win32_DisplayControllerConfigura... {} {BitsPerPixel, Caption...

Win32_MemoryArray {SetPowerState, R... {Access, AdditionalErr...

Win32_MemoryDevice {SetPowerState, R... {Access, AdditionalErr...

Win32_NetworkAdapterConfiguration {EnableDHCP, Rene... {ArpAlwaysSourceRoute,...

Win32_PointingDevice {SetPowerState, R... {Availability, Caption...

Win32_Printer {SetPowerState, R... {Attributes, Availabil...

Win32_PrinterConfiguration {} {BitsPerPel, Caption, ...

Win32_SMBIOSMemory {SetPowerState, R... {Access, AdditionalErr...

Win32_TemperatureProbe {SetPowerState, R... {Accuracy, Availabilit...

Win32_VideoConfiguration {} {ActualColorResolution...

Win32_VideoController {SetPowerState, R... {AcceleratorCapabiliti...

Win32_VoltageProbe {SetPowerState, R... {Accuracy, Availabilit...

接着，就可以使用类名查看它的有效数据啦：

复制代码 代码如下:

PS> Get-WmiObject -Class CIM_CacheMemory | Select-Object -Property *

心得：

其实有个类似功能的图形工具比这段代码更方便更直观，它叫ScriptomaticV2。

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